Final answer:
The question pertains to Geography, particularly in the measurement of Earth's surface features such as mountains and valleys in terms of their horizontal and vertical extent. Additionally, the artistic perspective is explored through Eliasson's exhibit that challenges classical linear perception and embraces a kaleidoscope-like array of light and reflections.
Step-by-step explanation:
The question involves understanding the greatest horizontal and vertical extent which is a concept closely associated with the discipline of Geography. This typically refers to the measurements on Earth's surface and can be related to the study of geological features like mountains, valleys, or planes that display significant extents on the horizontal and vertical scales. Geographers and cartographers often rely on longitudes and latitudes, as well as other tools and methods to describe the horizontal breadth and elevation of various features on our planet. For example, the horizontal extent could refer to the widest part of a mountain range, while the vertical extent could be the elevation difference from the lowest valley to the highest peak within a specified cross-section.
When discussing Eliasson’s exhibit Inside the Horizon, the concept is framed artistically to describe an experience beyond traditional linear perspectives. Said exhibit enhances the confusion and fascination with its kaleidoscope-like array of light, mirrors, and geometrical shapes that stretch both horizontally and vertically, thereby inviting a reevaluation of the traditional concepts of horizontal and vertical extents.